Focus following for the non-editable controls on web page in magnifier mode.

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 10a1c1aef2f3e228541695eec5b1e1f2f25a7a26..9b126d6aa46c1436e224a28fe4f9a443e4c0243d 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -1149,10 +1149,12 @@ IPC_MESSAGE_ROUTED0(ViewHostMsg_Focus)
 IPC_MESSAGE_ROUTED0(ViewHostMsg_Blur)
 
 // Message sent from renderer to the browser when focus changes inside the
-// webpage. The parameter says whether the newly focused element needs
+// webpage. The first parameter says whether the newly focused element needs
 // keyboard input (true for textfields, text areas and content editable divs).
-IPC_MESSAGE_ROUTED1(ViewHostMsg_FocusedNodeChanged,
-    bool /* is_editable_node */)
+// The second parameter is the node bounds relative to RenderWidgetHostView.
+IPC_MESSAGE_ROUTED2(ViewHostMsg_FocusedNodeChanged,
+                    bool /* is_editable_node */,
+                    gfx::Rect /* node_bounds */)
 
 IPC_MESSAGE_ROUTED1(ViewHostMsg_SetCursor, content::WebCursor)